Παρόμοια τεκμήρια

• Directory of United Nations information systems and services.
  Έκδοση: (1978)
• Specialized science information services in the United States : a directory of selected specialized information services in the physical and biological sciences /
  Έκδοση: (1961)
• The contex of national information systems in developing countries : India and China in a comparative perspective /
  ανά: Baark, Erik
  Έκδοση: (1986)
• Understanding directory services /
  ανά: Sheresh, Beth
  Έκδοση: (2000)
• Service directory of national organizations : 1965 /
  Έκδοση: (1965)